A study and experiment plan for digital mobile communication via satellite

The viability of mobile communications is examined within the context of a frequency division multiple access, single channel per carrier satellite system emphasizing digital techniques to serve a large population of users. The intent is to provide the mobile users with a grade of service consistant with the requirements for remote, rural (perhaps emergency) voice communications, but which approaches toll quality speech. A traffic model is derived on which to base the determination of the required maximum number of satellite channels to provide the anticipated level of service. Various voice digitalization and digital modulation schemes are reviewed along with a general link analysis of the mobile system. Demand assignment multiple access considerations and analysis tradeoffs are presented. Finally, a completed configuration is described

SIM Card Forensics: Digital Evidence

With the rapid evolution of the smartphone industry, mobile device forensics has become essential in cybercrime investigation. Currently, evidence forensically-retrieved from a mobile device is in the form of call logs, contacts, and SMSs; a mobile forensic investigator should also be aware of the vast amount of user data and network information that are stored in the mobile SIM card such as ICCID, IMSI, and ADN. The aim of this study is to test various forensic tools to effectively gather critical evidence stored on the SIM card. In the first set of experiments, we compare the selected forensic tools in terms of retrieving specific data; in the second set, genuine user data from eight different SIM cards is extracted and analyzed. The experimental results on a real-life dataset support the effectiveness of the SIM card forensics approach presented in this paper. Keywords: SIM card, Digital Forensics, Forensic tools, ICCID, IMS

THE ACCESSIBLE USER INTERACTION FRAMEWORK FOR ANDROID APPLICATIONS

As mobile technologies advance, accessibility features of smartphones are continu- ously improving and becoming more prevalent. It is essential that the user interaction design of mobile applications provides equal access and equal service to all our com- munity, especially for people with disabilities. However, there are no general mobile accessibility design guidelines publicly available. This paper reviews the web acces- sibility development guidelines as a reference, and the current accessibility features provided by modern mobile operating systems. It is proposed in this paper to use interactive spoken dialogues as the user interac- tion framework for accessible mobile applications. The idea is realized by the design and implementation of an Android application, AccessibleToolKit. AccessibleToolKit is developed to help visually impaired users to dial a phone number, manage alarms and the calendar. A usability study of AccessibleToolKit is conducted to evaluate the user experi- ence. Based on the feedback from the study, the design of AccessibleToolKit is refined to provide a more user-friendly experience. The performance of AccessibleToolKit is measured and compared with the performance of native apps. The comparison shows that AccessibleToolKit allow a user to perform commonly used tasks more efficiently. This study shows that using interactive spoken dialogues as the user interaction frame- work is a promising approach to develop accessible mobile applications

Campus Telecommunications Systems: Managing Change

The purpose of this book is to provide a broadbased understanding of the rapidly changing environment of campus telecommunications. The anticipated audience for this material is the non-technical university administrator who may not have direct responsibility for telecommunications, but has a need to understand the general environment in which his telecommunications manager functions and the basic concepts of the technology. Five topic areas were selected that best cover the preponderance of issues. No attempt has been made to associate or closely coordinate materials from one chapter\u27s subject to that of any other. Each chapter generally stands alone. In total, however, the five chapters address the topics and issues that most often generate inquiries from university administrators outside the telecommunications department. Introduction 1 The Changing Telecommunications Environment 2 Telecommunications Technology and the Campus 3 Student Services 4 Financing a New Telecommunications System . 5 Selecting a Consultant Glossary Inde

How Push-To-Talk Makes Talk Less Pushy

This paper presents an exploratory study of college-age students using two-way, push-to-talk cellular radios. We describe the observed and reported use of cellular radio by the participants. We discuss how the half-duplex, lightweight cellular radio communication was associated with reduced interactional commitment, which meant the cellular radios could be used for a wide range of conversation styles. One such style, intermittent conversation, is characterized by response delays. Intermittent conversation is surprising in an audio medium, since it is typically associated with textual media such as instant messaging. We present design implications of our findings.Comment: 10 page

Dynamic multimedia manual.

Wong Chung-Yu.Thesis (M.Phil.)--Chinese University of Hong Kong, 2002.Includes bibliographical references (leaf 75).Abstracts in English and Chinese.Abstract --- p.iiList of figures --- p.viiiList of tables --- p.ixChapter 1. --- BACKGROUND --- p.1Chapter 1.1 --- An analysis of manuals --- p.1Chapter 1.2 --- Existing practice --- p.5Chapter 1.3 --- New concept in dynamic manual --- p.7Chapter 1.3.1 --- Dynamic representation --- p.7Chapter 1.3.2 --- Machine-orientation --- p.8Chapter 2. --- DESIGN PHILOSOPHY --- p.10Chapter 2.1 --- Concept --- p.10Chapter 2.2 --- Data node --- p.12Chapter 2.3 --- Characteristic of function and operator --- p.14Chapter 2.4 --- Function hierarchy --- p.17Chapter 2.5 --- Manual-tree (conceptual and actual) --- p.18Chapter 2.6 --- Coding --- p.20Chapter 2.7 --- Operation sequence --- p.21Chapter 2.8 --- Parameter passing --- p.22Chapter 2.9 --- Manual-tree operation --- p.24Chapter 3. --- IMPLEMETATION OF DYNAMIC MANUAL SYSTEM --- p.25Chapter 3.1 --- Generator --- p.26Chapter 3.1.1 --- File format and generation --- p.26Chapter 3.2 --- Reader --- p.35Chapter 3.2.1 --- Guide service --- p.36Chapter 3.2.2 --- Button querying service --- p.37Chapter 3.2.3 --- Personal management service --- p.38Chapter 3.2.3.1 --- Insert --- p.38Chapter 3.2.3.2 --- Delete --- p.40Chapter 3.2.3.3 --- Swap --- p.40Chapter 3.3 --- The graphics --- p.42Chapter 4. --- EXPERIMENTS --- p.43Chapter 4.1 --- Experiment I (mobile phone) --- p.43Chapter 4.1.1 --- Data preparation --- p.43Chapter 4.1.2 --- Generating XML file --- p.46Chapter 4.1.3 --- Preparing multimedia material --- p.46Chapter 4.1.4 --- Design of Reader --- p.47Chapter 4.1.5 --- Testing --- p.51Chapter 4.1.5.1 --- Top-down search test --- p.51Chapter 4.1.5.2 --- Bottom-up search test --- p.52Chapter 4.1.5.3 --- function hierarchy modifying test --- p.53Chapter 4.2 --- Experiment II (pager) --- p.54Chapter 4.2.1 --- Data preparation --- p.54Chapter 4.2.2 --- Generating XML file --- p.54Chapter 4.2.3 --- Preparing multimedia material and the Reader --- p.56Chapter 4.2.4 --- Testing --- p.57Chapter 4.2.4.1 --- Top-down search test --- p.58Chapter 4.2.4.2 --- Bottom-up search test --- p.58Chapter 4.2.4.3 --- function hierarchy modifying test --- p.59Chapter 4.3 --- Control graphics constrain --- p.61Chapter 5. --- RESULTS --- p.65Chapter 5.1 --- Change of representation --- p.65Chapter 5.2 --- Storage and computation requirements --- p.70Chapter 6. --- CONCLUSION --- p.72References --- p.75Appendix A.1 input file of mobile phone (function part) --- p.76Appendix A.2 input file of mobile phone (operator part) --- p.96Appendix B.1 input file of pager (function part) --- p.105Appendix B.2 input file of pager (operator part) --- p.111Appendix C Function hierarchies and operator lists of the experiments --- p.113Appendix D Key words --- p.11

Can You Hear Me Now: The Myths Surrounding Cell Phone Use While Driving and Connecticut\u27s Failed Attempt at a Remedy Note

The use of cell phones while driving has been demonized by many as a predominant cause of automobile accidents attributed to distracted driving. While there is no doubt that distracted driving is dangerous, and increases the risk of being involved in an automobile accident, this Note contends that cell phone use does not play as prominent a role in distracted driving as is typically portrayed. Many other distractive stimuli pose a more significant threat, and often occur more regularly than cell phone use. Unlike cell phone use, however, these other distractive stimuli have not been characterized as negatively, or singled out by legislative bans. In particular, Connecticut’s legislation banning cell phone use while driving is neither a direct nor a particularly effective means of achieving its purported purpose of increasing the safety of Connecticut’s roadways. This Note advocates utilizing a graded negligence methodology which directly addresses the root of the problem—the conduct of the driver—by focusing on remedying all distractive driving practices. The graded negligence standard concentrates on the quality of conduct exhibited in the presence of a distractive influence, weighed with the level of negligence displayed in the conduct, combined with several other factors

ACUTA Journal of Telecommunications in Higher Education

In This Issue Discovering Hidden Revenue Sources in Ancillary Telecom Services How Videoconferencing Helps Universities Serve New Markets Show Me the Money- Entrepreneurs on Campus IT and Return on Investment Implementing IP Telephony Rate Development/Cost Modeling at UT Speech-Dialing the Right Campus Connection lnstitutional Excellence Award: College of St. Elizabeth President\u27s Message From the Executive Director Jake B. Schrum, PhD Internetworking Multimedi